Casing-head appliance for oil wells



June 4, 1929. 1 D, LEMEX l 1,715,846

CASING HEAD APPLIANCE FOR OIL WELLS Filed June 24, 1927 2 Sheets-Sheet 2 Map Patented dune.. 4,l '1929.

einen STATES -ATENT OFFICE.

JOHN D. LEMEX, OF TULSA., OKLAHOMA.

OASING-HEAD APPLIANQE FOR OIL WELLS.

Application led June 24, 1927. Serial N20. 201,150.

This invention'relates to a combined/tubing hanger and slip operating means, and more particularly to an oil well appliance of the character specified designed to be applied toa casing head secured to the upper end of a well casing and employed in conjunction therewith in the operation'of pullingvor run.- ning in the tubing used in oil and gas wells.

Among the VobJects of the present invention are, toy provide a new land improved tubing hanger;'to provide a new an improved combination tubing hanger, spider and slips; to provide a simple and eiicient tubing hanger that may be readily applied to the casing head and a previously inserted string or tubing without withdrawing the tubing from the casing or well, or breaking out or unscrewing any joints; and to provide newrandimproved labor saving means associated ywith* the .hanger for positioning 'and removing the hanger slips.

Further additional objects and advantages of the present invention-will be pointed o'ut or become apparent from a cnsideration of an operativeembodiment as hereinafter described vand as shown by the accompanying drawings.

In the drawings, which illustrate an application 'of my invention:

body portion 12 having a centrally disposed tapered slip receiving bore 13 and'a detachable or removable block member 14, the latter being designed to be received in an opening 15 formed. in the body. Block 14 is designed to be entered vertically into the said qpening, and may be removed from the body by slid-ing it vertically from the opening. Said block 14 is formed with shoulders 16 adapted to engage and cooperate wit-h shoulders 17 formedin the body 12. e

Body 12 is cut away, as shown at 18, and is also provided with registering openings 19 and 19a, said openings 19 and 19aL being designed to register with an opening 20 formed in the blockv 14. These openings are adapted to receive a retaining bolt'21 for locking the block 14 in the hanger body. 22-designates an adjustable nut interiorly threaded at 23 to engage a threaded portion 24 of the bolt 21, said nut 22 being provided with alined openings 22a to receive a jtool, not shown, employed for turning thenut.

It will be noted that the opening 15 is of sufficient size to receive the tubing 25 and that theY opening constitutes, when the block 14 is` removed, a radially extending leadingin slot for the tubing, thus enabling the hanger to be appliedto the'string of tubing 1 is a plan view of a combined tubing hanger and slip operating means embodying-l my invention;

Fig. 2, a vertical sectional view, the section` being taken on line II-H of Fig. 1, l looking in the direction ofthe arrows, the

tubing being shown by dotted lines;-

Fig. 3, a partv elevational and a partfsectional view, the section being taken on line nini- Of Figi;

Fig. 4, a top plan view of the hanger structure; and

Figo, a horizontal sectional view taken on line V-V of Fig. 3. i

Referring to the drawings,- 5 designates a hollow casing head designed to be attached to a section of adcasing 6, said head 5 being provided with the usual outlet passages 7 and ,8. In addition to the said passages 7 recess 9 adapted to receive a tubing hanger, indicated generally by the numeral 10. '11

l designates threaded bolts for` securing the tubinghanger 10 to the casing head.

The tubinghanger structure constitutes an -important and characteristic feature 'of Amy invention and, as shown, it includes a that has been` previously positioned in the' casing and casing-head without the necessity of first raising the tubing and then lowering it through the bore of the hanger, as hasl heretofore been necessary.A

Secured to the upper face of the tubing hanger by means of ca screw bolts 26, or other suitable means, an projecting`upwar'dly and outwardly therefrom, is aplate-likc support member 27. Member 27 is designed to pivotally support means operable from the exterior of the tubinghanger for positioning` nafledtherein. fand 8the 'head is formed with an annular slips in and removing them from the tapered bore 13 of the body portion 12 of the hanger.-

The outer and upper end of the support 27` is thickened and formed with anl upsta'ndinga apertured lug 28 forming av bearing fora shaft orv aheaded hinge bolt 29-loosely jour- Pivotally connected with4 the shaft 29, I

provide'a pair of operatinglever members 31,?said members 31, as shown, being tubular and formed attheir. secured ends with a slightly bent portion 32, said b'ent portion having anfopening 33'through whichathe shaft 29 loosely extends. By bending the ends, 'as shown at 32, and providing thel securing lug '28 a slight V-shaped Aspace 34 is a lever 31.

to be detached therefrom provided at each end of the said bearing whereby the ends of the levers are permitted to have a sli ht inward and-outward movement on sha t 29 to facilitate the operation of removing the slipsv from and placing them in the tapered bore of the hanger.

In the drawings, I have shown-only two tubing engaging slips 35, but more than two slips maybe employed and, if desired, the slipsljnay be connected in pairs. Each slip is serrated and is formed with a neck or handle portion 36 having an opening 37 therein'designedto receive an end .of a connecting member 38 depending from the said operating levers 31.

The slip connecting'y members, as illus. trated, vcomprise link members 38 each' oil field, and readily positioned o'n casing 'heads and aplplied thereto even int cases` where the tubi g has. been previously passed through the casing head and projects upwardly therefrom. Further, it also comprises a construction permitting the tubingI hanger part to remain on a casing he'ad while permitting the slip operating means and applied to another tubinghanger. I

What I claim is: y

-l. In anoil well appliance of the character described, a tubing hanger having a tapered bore, a slip removably mounted in the bore, means detachably connected to the upper end of the tubinghanger for moving thev slip into and outjof operative position, said means including a support member extendf ing upwardly and outwardly from the uD- per end of the tubing hanger, a bent operating lever pivotally and shiftably connected to the support member, and a depending slip connecting member carried by the lever and connected to the slip.

2. In an oil well appliance of the character described, a tubing hanger having a tapered bore, slips removably mounted in the bore, means detachably connected to the upper end of the tubing hanger for moving the slips into and out of operative position, said means including a support member extending upwardly and outwardly fromthe upper end of the tubing han er, an apertured ber, a pivot pin passed through said lug, a pair of yoperating levers each pivotally connected" to the upper and outer end of the support member by the pivot pin, said levers each having a bent end portion adjacent said' lug whereby the 'ends may be shifted relatively to the lug, and depending 'slip' engaging means carried by the said levers and connected to the slips. e

3. In an oil well appliance of the character described, the combination with a tubing hanger having a slip receiving bore, of slip moving means detachably mounted on the hanger for moving slips into and out of operative position in the bore including a del`J tachable support, a pair of levers having* bent end portions pivotally and shiftably mounted at the'outer end of the support, a pivot pin carried by the support upon which the levers are mounted, and loosely connected'slip-engaging links de ding from the levers,'and connected to thglips.

. In ltestimony whereof I vaflix my signature.

JOHN D. LEMEX. 

